Improved adjustable window-screen



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Letters Patent No. 90,845,1datcd June l, 1869. Y

IMPROVED ADJUSTABLE WINDOW-SCREEN.

The Schedule referred to in these Letters Patent and making part of thesame.

To all whom it may concern:

Be it known that I, DANIEL N. HURLBUT, of Ghicago, in the` county ofCook, and State of Illinois, have invented a new and useful Improvementin Adjustable Window-Screens; and I do hereby declare and make knownthat the following is a full, clear, and exact description of the same,reference being had to the accompanying drawings, and the letters andfigures marked thereon., which form part of this specification. i

Mysaid invention vrelates to that class of windowscreens which isconst-ructedof two separate frames, suitably7 covered, arranged side byside, and having a sliding movement upon each, so as to cause thewindow-screen to shorten or lengthen, and thus adapt the same todifferent windows of different widths, which sections or frames areconnected Aby means of a cord and spring, in such a manner as to pressthe ends of the screen against the sides of the window-frames, and thuscanse the screens to remain in any desired position, either at the topor bottom, or at any intel'- mediate point, as' preferred.

My said invention consists iu the employment of bars at that part -ofthe screen where each section of the frame overlaps the other, to holdthe wire or gauze vof 'each screen close up against the end of the frameof the other section, so as eectually to prevent the windt-'rom blowingthe gauze, or wire back, to leave a space throughwhich insects mightenter.

`To enable those skilled in the art to understand how tol construct anduse my said invention, I will proceed to describe Athe same withparticularity, making reference, in so doing, to the aforesaid drawings,in Which- Figure 1 represents a front view of my improvemeut in use;

Figure 2 is a vertical transverse section, taken at :z: in ig. 1,looking to the right; A

Figure 3 is a similar section,at y, in fig. 1, looking to the left; and

Figure 4 is a top view of the adjustable screen. Similar lettersofreference in the several yfigures denote the same parts of my saidinvention.

A and B represent the frames, on which wire or gauze screen-cloth C isfastened.

These frames are made so that theyslide past each other, so that theycan be adapted to windows of different widths, and it is accomplished byattaching to' the top and bottom ofthe frame B, metallic strips D, whichextend out sudiciently far for the edges thereof, which are turned atright angles, as shown in figs. 2 and 3, to embrace the edges oftheframe A.

The frame A will slide back and forth between the plates D, and thusadapt the screen to windows of different widths.

E represents au elastic cord, or band, one end of which is attached tothe frame B, as shown in lig. 1, while the otherend is attached to theframe A, in

such a manner as to constantly press said frames Y between the wire, orgauze, on the frame B, and.

the end-piece J of the frame A. To close that space and make the screentight, so that no insects can pass through it, I place a cross-piece, K,across the frame B, in such a manner that it keeps the wire, or gauze onthe frame B pressed against the end-piece J ofthe frame A.

As the end-piece J would not always be in the same position relative tothe frame B, on account of the screen being placed in windows ofdifferent widths, the cross-piece K'is adjustable, so that it can bemoved to different parts of the frame B. The crosspiece K may be made ofany suitable ,material that would serve the purpose of keeping the wire,or gauze pressed against the end-piece ofthe frame A, as abovedescribed. K

I also put pins, or movable bolts O in those parts of the flames A and Bthat are pressed against the window-frame; and I also use set-screws P,which pass through one frame and set against the other, to hold theframes in place when they are set in a window, and the pins, or bolts Opressed into the frame, or casing thereof.

The pins O and set-screws P take the place of the spring E now in use,to fasten the screen more permanently into the window, so that itcannotbe pushed out by children, and, besides, it obviates theobjections to springs ou account of' their liability' to become weak anduseless after they have been used awhile.

AO' latins.

Having thus fully described theconstruction and operation of myinvention,

What I claim, and desire to secure by Letters Patent, is

1. 'lhe combination of the cross-piece K with the frames A and B, whenarranged and operating in a Witnesses L. L. GOBURN, J. L. COBURN.

